Communications of the ACM

The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.

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A new wave of sensory substitution devices work to assist people who are blind or deaf.

A new generation of portable scientific instruments is taking shape, thanks to mobile processors and innovative data-gathering techniques.

As automation takes on more and more tasks, what will human workers do?

Assessing the uncertainties of the business models driving the sharing economy.

Seeking to remedy bad legislation with good science.

Reflections on a firm that encapsulated the American Century.

Considering the double-edged sword of learning technologies in various academic settings.

Seeking more effective strategies for training and nurturing CS postdocs to ensure their success.

The network era requires new models, with interactions instead of algorithms.

Ordinary users need tools that automate the selection of custom-tailored faults to inject.

Building a decentralized Web-delivery model.

Once a meme gets popular, it will have to evolve to keep being popular.

In a decentralized marketplace, buyers and sellers transact directly, without manipulation by intermediary platforms.

The practice of hiding ill-gotten data in digital objects is rising among cyber thieves. New initiatives serve to educate, train, and thwart these activities.

Over 13 months in 2016--17 the U.S. Federal Communications Commission conducted an "incentive auction" to repurpose radio spectrum from broadcast television to wireless internet. In the end, the auction yielded $19.8 bn, $10.05 bn of which was paid to ...

Writing high-performance code on modern machines requires not just locally optimizing inner loops, but globally reorganizing computations to exploit parallelism and locality---doing things such as tiling and blocking whole pipelines to fit in cache. ...